>From chris@neuroinformatik.ruhr-ini-bochum.de:
>My question is: Did Carrell and Opie use always the same AM for all
>components of the sine-wave speech?
No. We also included a conflicting modulation frequency condition in which
the three tones were modulated at three different (prime numbered, to avoid
inadvertant comodulation) frequencies.
>If so, it would be interesting to
>see what happens if either the AM frequency was slighlty modified
>(100 Hz versus 105 Hz) or the phase of the AM was randomized between
>the different components of sine-wave speech. This would clarify
>whether
> - The AM helps by broadening the formants, or
Nope.
> - the AM helps by auditory grouping comodulated sinusoids.
Yes.
If you have any other questions or comments feel free to email me or
Jane Opie (atjmo@acvax.inre.asu.edu) directly.
Tom Carrell
tcarrell@nwu.edu